01 -
Preheat your oven to 400°F (200°C).
02 -
In a large bowl, combine ground beef, chopped spinach, minced garlic, breadcrumbs, egg, salt, and pepper until well mixed.
03 -
Shape the mixture into balls (about 2 tablespoons each), placing a small cube of mozzarella cheese in the center before sealing.
04 -
Arrange on a parchment-lined baking sheet and bake for 20-25 minutes until cooked through and browned.
05 -
Serve hot with marinara sauce or as desired.